Auxiliary device for forming of automotive upholstery

The utility model relates to the technical field of automobile interior trim part processing, in particular to an automobile interior trim part forming auxiliary device which comprises a workbench, a processing assembly is arranged on the top of the workbench, a collecting groove is formed in the top of the workbench, and a mounting seat is arranged in the workbench. Four mounting plates are rotationally arranged at the end of the mounting base, cutting blades are arranged at the bottoms of the mounting plates, strip-shaped grooves are formed in the top ends of the mounting plates, a second air cylinder is fixedly arranged at the top of the mounting base, a lifting frame is fixedly arranged at the top of a piston rod in the second air cylinder, and four evenly-distributed transmission rods are fixedly arranged at the top end of the lifting frame; the four transmission rods are arranged in the four strip-shaped grooves in a sliding mode correspondingly. The second air cylinder drives the lifting frame and the